Filling stop-motion for looms.



10.746.058. PATBNTED 1350.18, 19031' W.A.P0WLBR.

FILLING STOP MOTION FOR LO0MS.

-APPLIUATION FILED AUGl s, 1.903.

No MoDEL.

'THE nofws PETERS w.. l-loro-Llwo. wAsmNnTon. u. c:

ivo. 746,058.

UNITED STATES atented December 8, i903.

Iljntrlrivr OFFICE.

WILLIAM A. FOWLER, OF SALISBURY, NORTH CAROLINA, ASSIGNOR TO DRAPER COMPANY, OF I-IOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

FILLING STOP-MOTION FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 746,058, dated-December 8, 1903. Application led August 8, 1903. Serial No. l168,710. (No model.)

` citizen of the United States, and a resident of Salisbury, county of Rowan, State of North Carolina, have invented an Improvement in Filling Stop-Motions for Looms, of whichthe following description, in connection with the accompanying drawings, is a specification,

ylike characters on the drawings representing like parts. p

This invention has for its object the production of novel means for effecting automatically the stoppage of a loom upon failure of the iilling, due either to breakage or exhaustion thereof in the running-shuttle.

In the common form of filling stopmotion the lling when present tilts a fork on each alternate beat of the lay, and when the filling is absent on the detecting-pick the fork is not tilted and its tail engages a hook carried by a camfollower and usually termed the-wefthammer. The outward movement of the latter thereupon moves the fork-slide outward, and through suitable intervening devices the shipper is released.

In my present invention I dispense entirely with the weft-hammer and effect the desired movement of the forkslide by or through the movement of the lay, and in the present einbodiment of my invention the shuttle-binder is utilized for such purpose. Vhen the shuttle is boxed on the detecting side of the loom, the binder imparts movement to an actuator, and if the filling is absent the latter coperates with and moves the fork-slide outward. If the iilling is present, the fork is tilted and the slide remains stationary. On alternate beats the shuttle is in the opposite shuttle-box, and at such time the binder which operates the actuator cannot impart sufficient movement thereto to operatively move the forkslide. Y

lhe various novel features of my invention will be fully described in the subjoined specification and particularly pointed out in the following claims.

Figure l is a left-hand side elevation of a sufficient portion of a loom to be understood with one embodiment of my invention applied thereto, the picker and picker-staff being omitted; and Fig. 2 isa top or planview of the apparatus shown in Fig. l.

The loom-frame A, lay A3, longitudinally slotted for the picker-staff P, and the detecting shuttle-box, comprising a fixed back wall bx, cover-plate b, front binder B, fulcrumed at its outer end at b on the lay and having its inner end'b2 pressed against the fixed guard or stop-plate b3 at the mouth of the shuttle-box by the usual spring (not shown) on the protector rock-shaft D, may be and are all of substantially the construction shown in United States Patent No. 731,391. So, too, the short bifurcated arm d, secured to the said rockshaft, the upturned binder-iin ger f,fulcrumed at bs on a bracket b4 on the lay, and the arm f, rigidly connected with the binder-finger and extended beneath the lay to enter the notchd of the arm d, are asin said patent and operate as therein provided to lift the dagger Dx when the shuttle is properly boxed. The shipper Sx, to operate a belt-shipper or similar device, (not shown,) the notched holding-plate N, the knock-'off lever n n', f ulcrumed at nx, Fig. 2, the guide m, rigidly mounted on the breast beam A40, the forkslide m', movable ink said guide transversely to the breast-beam, the filling-detector or fork mx, fulcriimed on the slide, and the loop or tail m2 of the fork, may be and are all of well- .known construction.`

Brackets 2O 2l 011 the back of the loom side provide bearings for a short horizontal rockshaft ax, having secured to it near its inner end an upturned arm a, carrying at its upper end'a pivotally-mounted hook a', movable beneath the tail of the fork mx, the arm a eX- tending up into the slotted rear end of the fork-slide, as shown in Figs. 2.

The bracket 21 presents a sleeve-like bearing 22 for the rock-shaft ctx, the arm aie'being located adjacent the inner end of the said bearing,

Outside of and adjacentthe bearing provided by the bracket 2O a second shorter arm' a2 is secured to the rock-shaft by a set-screw l0 for adjustment, the Lipper' end of said arm being shown as extended rearwardly (see Fig. l) in the path of movement of the inner end L of the binder B. A contact-stud CL3, screwed into the upper end of arm a2, is held in adjusted position by a check-nut ai, the head of the stud engaging the binder as the lay beats up.

Referring to Fig. 2, a spring SX is coiled around the Vrock-shaft (LX and secured at one end thereto, the other end of the spring being fixed, the spring tending to turn the rockshaft in a direction to move the arms a and a2 rearwardly. An ear 5 on the arm a2 cooperates with a stop-shoulder 6 on the bracket 2O (see Fig. l) to limit such movement of the rock-shaft and arms, the arm a constituting the actuator for the fork-slide, as will appear hereinafter. V\Vhen the shuttle S is in the detecting shuttle-box-viz., the one adjacent the iillingfork-the binder will be held out, as clearly shown in Fig. 2, and when the lay beats up the end b2 of the binder will engage the stud a3 and turn the rock-shaft ctx against the spring SX, giving an outward stroke to arm a, the actuator. As the latter is longer than the arm d2, it will have a greater movement, sufficient for purpose desired. When the filling is present, it will tilt the fork and lift its tail m2 above the hook a before the outward stroke of the actuator is effected. If the iilling is absent, however, the hook engages the tail and moves the fork-slide 'm' outward, the latter then acting on the arn n of the knock-off lever to turn it on its fulcrum and release the shipper SX. On the alternate or non-detecting beats of the lay the end b2 of the binder rests against the stop-plate b3, and as the lay beats up the linder end b2 is so far back that movement of the rock-shaft ax is insufficient to cause operative movement of the fork-slide by the actuator a, it being manifest that otherwise the slide would be moved because the fork is not tilted on such beats of the lay. The spring .SX returns the actuator to back position as the lay swings back.

By means of the set-screw 10 and the adjustable contact-stud a3 a very accurate and iine adjustment can be made, so that the proper actuating movement of the actuator will be effected by the lay as it beats up.

The construction is simple, direct-acting, and positive in its operation, the operative movement of the fork-slide being effected by or through the lay itself, obviating the usual weft-hammer and its actuatiugcam.

l'lavin fully described my invention, what l claim as new, and desire to secure by Letters Patent, isn

l. In a loom, a lay, a filling-detector, a movable support therefor, and positively-operating means actuated by or through the lay on its forward beat to move said support when absence ol filling is detected by said iillingdetector, said means including two operatively connected rocking members, one of which cooperates with the filling-detector to move its support.

2. Ina loom, a lay, a lling-fork, a slide on which it is mounted, and means including a rock-shaft and two rigidly-attached arms actuated by or through the movement of the lay on alternate beats to move the slide outward when absence of filling is detected, one of said arms being engaged by a part on the lay and the other arm 'acting through the filling-fork to move the slide.

In a loom, a lay, a filling-fork, a slide on which it is mounted, outward movement of the slide being adapted to cause the operation of a stopping instrumentality, and means, including an actuator and an impact member rigidly connected therewith, adapted to rock on a common fulcrum, and actuated by the beat-up of the lay, to move the slide outward when absence of filling is detected.

4. In a loom, a lay having a shuttle-box thereon provided with a binder, a iilling-de tector, amovable support therefor, and means actuated by or through the binder when the shuttle is in said shuttle-box to cause operative movement of said support when absence of iilling is detected.

5. In a loom, a lay having a shuttle-box thereon provided with a binder, a filling-detector, a slide upon which it is mounted, outward movement of the slide being adapted to effect the operation of a stopping instrumentality, and adjustable means actuated by or through engagement with said binder when the shuttle is boxed to cause outward movement of the slide upon detection of absence of filling.

In a loom, a lay, a filling-fork, its slide, a vibratable actuator to effect outward movement of the slide when the filling is absent, and means connected with and adapted to impart the operating stroke to the actuator by or through the lay.

7. In a loom, a lay, a filling-fork, its slide, a vibratable actuator to effect outward movement of the slide when the filling is absent, and means, including an adjustable impact member connected with said actuator, to impart the operating stroke to the actuator by or through the lay on the forward beat thereof.

S. ln a loom, a lay, a shuttle-box thereon provided with a binder, a illing-fork, its slide, a pivotally-mounted, vibratable actuator to effect outward movement of the slide when the fillin gis absent, and means, including a member in the path of the binder as the lay beats up, to impart the operating stroke to said actuator when the shuttle is in said shuttle-box.

9. In a loom, a lay, a filling-fork, its slide, a vibratable actuator to effect outward movement of the slide when the illing is absent, a rock-shaft on which the actuator is mounted, an arm fast on said rock-shaft, an adjustable impact member carried by said arm, to be engaged by a part on the lay on its forward beat and through said arm turn the rock-shaft as the lay beats up on alternate picks, and a spring to turn said roclcshait in the opposite direction.

'IOO

IIO

lO. In a loom, a lay, a shuttle-box thereon provided with a binder, a lling-fork, its slide,

a pivotalIy-mounted, vibratable actuator toA move the slide outward when the filling is absent, and means, including an adjustable member in the path of the free end of the binder, to impart the operating stroke to the actuator when the shuttle is in 'the said shuttlc-box.4

In testimony whereof I have signed my name to this speciiication in the presence of two subscribing witnesses.

WILLIAM A. FOWLER.

Witnesses:

W. O. MAUPIN, P. S. CARLTON. 

